/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Function:		mapGroupOn(group)
Description:	Turns on specified Layer group(s)
Arguments:		none
Return:			
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
function mapGroupOn(group){
	var myMap = getMap(); 
	var myLayerGroup = myMap.getMapLayerGroup(group);
	if (myLayerGroup.getVisibility()!='True'){
		myMap.setAutoRefresh(false);
		myLayerGroup.setVisibility(true);
		var myGLayers = myLayerGroup.getMapLayers();
		for(var i=0; i < myGLayers.size(); i++){
			var myLayer = myGLayers.item(i);
				myLayer.setVisibility(true);
		}
		myMap.refresh();
	}
}